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Results 1 - 16 of 16

Hidden deep in the halo: Selection of a reduced proper motion halo catalogue and mining retrograde streams in the velocity space. (arXiv:2302.00053v1 [astro-ph.GA])
- Volume 18, Issue 5 - article #2
- Akshara Viswanathan, Else Starkenburg, Helmer H. Koppelman, Amina Helmi, Eduardo Balbinot, Anna F. Esselink
- http://arxiv.org/abs/2302.00053
High-precision chemical abundances of Galactic building blocks. II. Revisiting the chemical distinctness of the Helmi streams. (arXiv:2203.11808v1 [astro-ph.GA])
- Volume 17, Issue 12 - article #4
- Tadafumi Matsuno, Emma Dodd, Helmer H. Koppelman, Amina Helmi, Miho N. Ishigaki, Wako Aoki, Jingkun Zhao, Zhen Yuan, Kohei Hattori
- http://arxiv.org/abs/2203.11808
Substructure in the stellar halo near the Sun. I. Data-driven clustering in Integrals of Motion space. (arXiv:2201.02404v1 [astro-ph.GA])
- Volume 17, Issue 2 - article #3
- S. Sofie Lövdal, Tomás Ruiz-Lara, Helmer H. Koppelman, Tadafumi Matsuno, Emma Dodd, Amina Helmi
- http://arxiv.org/abs/2201.02404
Substructure in the stellar halo near the Sun. II. Characterisation of independent structures. (arXiv:2201.02405v1 [astro-ph.GA])
- Volume 17, Issue 2 - article #4
- Tomás Ruiz-Lara, Tadafumi Matsuno, S. Sofie Lövdal, Amina Helmi, Emma Dodd, Helmer H. Koppelman
- http://arxiv.org/abs/2201.02405
High-precision chemical abundances of Galactic building blocks. The distinct chemical abundance sequence of Sequoia. (arXiv:2111.15423v1 [astro-ph.GA])
- Volume 16, Issue 49 - article #4
- Tadafumi Matsuno, Helmer H. Koppelman, Amina Helmi, Wako Aoki, Miho N. Ishigaki, Takuma Suda, Zhen Yuan, Kohei Hattori
- http://arxiv.org/abs/2111.15423
Substructures, Resonances and debris streams. (arXiv:2105.09957v1 [astro-ph.GA])
- Volume 16, Issue 22 - article #3
- Emma Dodd, Amina Helmi, Helmer H. Koppelman
- http://arxiv.org/abs/2105.09957
The messy merger of a large satellite and a Milky Way-like galaxy⋆
- Volume 15, Issue 43 - article #8
- Helmer H. Koppelman, Roy O. Y. Bos, Amina Helmi
- Astronomy & Astrophysics
- http://feedproxy.google.com/~r/edp_aa/~3/S7YV21troEE/202038652
Galactic potential constraints from clustering in action space of combined stellar stream data. (arXiv:2007.00356v1 [astro-ph.GA])
- Volume 15, Issue 27 - article #2
- Stella Reino, Elena M. Rossi, Robyn E. Sanderson, Elena Sellentin, Amina Helmi, Helmer H. Koppelman, Sanjib Sharma
- http://arxiv.org/abs/2007.00356
A massive mess: When a large dwarf and a Milky Way-like galaxy merge. (arXiv:2006.07620v1 [astro-ph.GA])
- Volume 15, Issue 25 - article #2
- Helmer H. Koppelman, Roy O.Y. Bos, Amina Helmi
- http://arxiv.org/abs/2006.07620
The Reduced Proper Motion selected halo: methods and description of the catalogue. (arXiv:2004.07328v1 [astro-ph.GA])
- Volume 15, Issue 16 - article #5
- Helmer H. Koppelman, Amina Helmi
- http://arxiv.org/abs/2004.07328
Multiple retrograde substructures in the Galactic halo: A shattered view of Galactic history
- Volume 14, Issue 46 - article #12
- Helmer H. Koppelman, Amina Helmi, Davide Massari, Adrian M. Price-Whelan, Tjitske K. Starkenburg
- Astronomy & Astrophysics
- http://feedproxy.google.com/~r/edp_aa/~3/78iBFmE2n_0/201936738
The origin of the Galaxy's system of globular clusters. (arXiv:1906.08271v1 [astro-ph.GA])
- Volume 14, Issue 25 - article #6
- Davide Massari, Helmer H. Koppelman, Amina Helmi
- http://arxiv.org/abs/1906.08271
The Pristine Survey IV: Approaching the Galactic metallicity floor with the discovery of an ultra metal-poor star. (arXiv:1807.04292v1 [astro-ph.SR])
- Volume 13, Issue 28 - article #12
- Else Starkenburg, David S. Aguado, Piercarlo Bonifacio, Elisabetta Caffau, Pascale Jablonka, Carmela Lardo, Nicolas Martin, Ruben Sanchez-Janssen, Federico Sestito, Kim A. Venn, Kris Youakim, Carlos Allende Prieto, Anke Arentsen, Marc Gentile, Jonay I. Gonzalez Hernandez, Collin Kielty, Helmer H. Koppelman, Nicolas Longeard, Eline Tolstoy, Raymond G. Carlberg, Patrick Cote, Morgan Fouesneau, Vanessa Hill, Alan W. McConnachie, Julio F. Navarro
- http://arxiv.org/abs/1807.04292
The formation of two of the major structural components of the Milky Way. (arXiv:1806.06038v1 [astro-ph.GA])
- Volume 13, Issue 25 - article #7
- Amina Helmi, Carine Babusiaux, Helmer H. Koppelman, Davide Massari, Jovan Veljanoski, Anthony G.A. Brown
- http://arxiv.org/abs/1806.06038
One large blob and many streams frosting the nearby stellar halo in Gaia DR2. (arXiv:1804.11347v1 [astro-ph.GA])
- Volume 13, Issue 18 - article #13
- Helmer H. Koppelman, Amina Helmi, Jovan Veljanoski
- http://arxiv.org/abs/1804.11347
The Time Evolution of Gaps in Tidal Streams
- Volume 11, Issue 36 - article #20
- Amina Helmi, Helmer H. Koppelman
- The Astrophysical Journal Letters
- http://iopscience.iop.org/2041-8205/828/1/L10

Results 1 - 16 of 16

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